地震工区矩形定位方法及井位搜索判别条件  

On Locating the Rectangular Seismic Working Area and Determining Well Positions

作　　者：石丹[1] 

机构地区：[1]中国石油辽河油田公司勘探开发研究院,辽宁盘锦124010

出　　处：《江汉石油职工大学学报》2011年第2期51-52,共2页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：在确定地震工区位置时,用鼠标在计算机屏幕上点出的矩形顶点只是近似值,需要根据这些近似值求出工区矩形顶点的精确值。本文给出了利用三个近似点确定最小包络矩形的计算公式,这一公式可以用于工区矩形的精确定位;进一步得到井位坐标是否位于工区矩形之内的简单判别条件。使用工区矩形精确定位方法和井位判别条件,较好地解决了辽河勘探数据库中井位搜索及绘图程序开发中所涉及的数据库SQL查询程序的复杂编码问题。When locating the seismic work area,the rectangular vertexes on the computer screen showed only the approximate coordinates from which the accurate figures had to be deduced.This paper had come up with a formula to determine the minimum envelope based on three approximate vertex figures.This formula can be used to accurately locate the rectangular working area and then easily decided whether the well coordinates are within its range.With this formula,Liaohe Oil Field drilling data base can crack the complex coding in searching program of SQL data base during the development of well positioning and mapping program

关 键 词：地震勘探 工区矩形 井位 数据库 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]